Question

Give reason: it is easier to drag a mat on floor when nobody is sitting on it but much difficult

to drag the same mat when a person sitting on it.
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Answer 1

Answer:

it is more difficult because if a person sits on mat then the weight will be more than the empty mat

Explanation:

Answer 2

Answer:

The phenomenon occurs due to the weight of the person sitting on the mat. The weight acts downwards and hence, the mat becomes difficult to drag.